Messenger Plus! (formerly known as
Messenger Plus! Live, commonly abbreviated
MsgPlus,
Plus!, or incorrectly as
MSN Plus) is an
adware add-on for
Windows Live Messenger and
Skype. The software provides additional functionality to Microsoft's
Instant messaging client, Windows Live Messenger, by adding its own controls to the main interface. These controls affect Messenger's behaviour and appearance, often through additional dialog boxes.